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Finding the Fourth Proportional to 86,804.32, 119,788.92 and 50,997.60

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Solution

The fourth proportional to 86,804.32, 119,788.92 and 50,997.60 is: 70,376.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,804.32 : 119,788.92 = 50,997.60 : x
  2. Step 2: Convert to fraction form
    86,804.32/119,788.92 = 50,997.60/x
  3. Step 3: Cross multiply
    86,804.32x = 119,788.92 × 50,997.60
  4. Step 4: Simplify right side
    86,804.32x = 6,108,947,426.59
  5. Step 5: Solve for x
    x = 6,108,947,426.59/86,804.32
  6. Step 6: Final answer
    x = 70,376.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.